SS (stainless steel) Downhole Pump

Sanjack sucker rod pump workshop was established in 1964, which enjoys a history of more than 50 years. We own abundant experiences in the production of sucker rod pumps and strong skills in technical research and development. The downhole pump products include various series of tubing pumps, rod pumps and special sucker rod pumps. For solving downhole sucker rod pump corrosion, SANJACK developed SS (stainless steel) sucker rod pump using precise rolling after 2 year’s studying.

  • Perfectly solves the problem that the insert pump is corroded by H2S, CO2 and other corrosive substances.
  • Precision rolling process is adopted to meet the requirements of oil pump precision.

The produced water in oil wells contains a variety of corrosive substances, such as Saline water, Cl-1, SO4-2, HCO3-1, CO3-2, H2S, CO2, Oxygen, which can cause strong corrosion to the carbon steel pump.

Although stainless steel (S50100, S30400) is extremely resistant to corrosion, it is relatively soft and has very low hardness and strength.

stainless steel downhole pump barrel

Conventional processing methods, such as honing, cannot meet the requirements of the dimensional accuracy of the pump barrel.

In order to solve this problem, SANJACK adopt precision rolling process to ensure the precision of stainless steel pump barrel.

The stainless steel pump barrel is chrome plated to improve the wear resistance.

stainless steel rod pump

Data Sheet:

Type Thick wall rod pump Thin wall rod pump Tubing pump
Bore size (in) 1 1/16~2 1/4 1 1/4~2 1/2 1 3/4~3 3/4
Plunger length (ft) 2-24
Barrel length (ft) 2-34
Material Barrel A3: Chrome plate on 4/6 chrome steel

A6: Chrome plate on austenitic stainless steel

B3: Heavy chrome plate on 4/6 chrome steel

B6: Heavy chrome plate on austenitic stainless


Plunger D1-D3: Spray metal with Ni/Cu alloy


E1-E3: Spray metal with Nickel plated

pin ends and entire length of

inside diameter

F1-F3: Spray metal with Nickel plated

pin ends and entire length of

inside diameter

Corrosion medium H2S, CO2, Saline water, Oxygen

stainless steel tubing pump barrel

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